On 6/26/2021 4:41 PM, Tomas Pales wrote:
On Saturday, June 26, 2021 at 11:36:47 PM UTC+2 Brent wrote:
But presumably the */laws /*are stable. Why? Because that's the
way we want them. If they weren't stable (or even time invariant)
we wouldn't call them laws of physics. They'd be initial
conditions or historical accidents.
But why do stable laws exist in our universe and what is the guarantee
that they will continue to exist?
Notice that they don't exist in the sense you mean. Newton's laws
aren't around anymore. Determinism is gone. Space and time aren't
separate. So why do you think the laws are stable? Because when we
invent/discover a new law we necessarily demand that it also apply in
all of the past. We ignore the fact that we thought Newton's laws were
stable before 1905.
So there's no guarantee they will continue without change, but they will
apply to the past. How do we know? We don't, but it's supported by
induction. Induction is a self-supporting form of inference. If there
is any effective form of empirical inference, then induction will do as
well.
Brent
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